Precautions

It is important that your doctor check your progress at regular visits, especially in infections in which high doses are needed. This is to make sure that the infection is cleared up completely and to allow your doctor to check for any unwanted effects.

If your symptoms do not improve within a few days, or if they become worse, check with your doctor.

For patients taking mebendazole for pinworms:

In some patients, pinworms may return after treatment with mebendazole. Washing (not shaking) all bedding and nightclothes (pajamas) after treatment may help to prevent this.

Some doctors may also recommend other measures to help keep your infection from returning. If you have any questions about this, check with your doctor.

For patients taking mebendazole for hookworms or whipworms :

In hookworm and whipworm infections anemia may occur. Therefore, your doctor may want you to take iron supplements to help clear up the anemia. If so, it is important to take iron every day while you are being treated for hookworms or whipworms; do not miss any doses. Your doctor may also want you to keep taking iron supplements for up to 6 months after you stop taking mebendazole. If you have any questions about this, check with your doctor.